teken_scs.h revision 197471
1187469Sed/*- 2187469Sed * Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org> 3187469Sed * All rights reserved. 4187469Sed * 5187469Sed * Redistribution and use in source and binary forms, with or without 6187469Sed * modification, are permitted provided that the following conditions 7187469Sed * are met: 8187469Sed * 1. Redistributions of source code must retain the above copyright 9187469Sed * notice, this list of conditions and the following disclaimer. 10187469Sed * 2. Redistributions in binary form must reproduce the above copyright 11187469Sed * notice, this list of conditions and the following disclaimer in the 12187469Sed * documentation and/or other materials provided with the distribution. 13187469Sed * 14187469Sed * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15187469Sed * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16187469Sed * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17187469Sed * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18187469Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19187469Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20187469Sed * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21187469Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22187469Sed * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23187469Sed * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24187469Sed * SUCH DAMAGE. 25187469Sed * 26187469Sed * $FreeBSD: head/sys/teken/teken_scs.h 197471 2009-09-24 20:34:44Z ed $ 27187469Sed */ 28187469Sed 29187469Sedstatic void 30187469Sedteken_scs_set(teken_t *t, unsigned int g, teken_scs_t *ts) 31187469Sed{ 32187469Sed 33187469Sed t->t_scs[g] = ts; 34187469Sed} 35187469Sed 36187469Sedstatic void 37187469Sedteken_scs_switch(teken_t *t, unsigned int g) 38187469Sed{ 39187469Sed 40187469Sed t->t_curscs = g; 41187469Sed} 42187469Sed 43187469Sedstatic void 44187469Sedteken_scs_restore(teken_t *t) 45187469Sed{ 46187469Sed 47187469Sed t->t_scs[t->t_curscs] = t->t_saved_curscs; 48187469Sed} 49187469Sed 50187469Sedstatic void 51187469Sedteken_scs_save(teken_t *t) 52187469Sed{ 53187469Sed 54187469Sed t->t_saved_curscs = t->t_scs[t->t_curscs]; 55187469Sed} 56187469Sed 57187469Sedstatic teken_char_t 58187469Sedteken_scs_process(teken_t *t, teken_char_t c) 59187469Sed{ 60187469Sed 61197470Sed return (t->t_scs[t->t_curscs](t, c)); 62187469Sed} 63187469Sed 64187469Sed/* Unicode points for VT100 box drawing. */ 65197470Sedstatic const uint16_t teken_boxdrawing_unicode[31] = { 66187469Sed 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, 67187469Sed 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, 68187469Sed 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, 69187469Sed 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7 70187469Sed}; 71187469Sed 72197470Sed/* CP437 points for VT100 box drawing. */ 73197470Sedstatic const uint8_t teken_boxdrawing_8bit[31] = { 74197470Sed 0x04, 0xb1, 0x48, 0x46, 0x43, 0x4c, 0xf8, 0xf1, 75197470Sed 0x4e, 0x56, 0xd9, 0xbf, 0xda, 0xc0, 0xc5, 0xc4, 76197470Sed 0xc4, 0xc4, 0xc4, 0xc4, 0xc3, 0xb4, 0xc1, 0xc2, 77197470Sed 0xb3, 0xf3, 0xf2, 0xe3, 0xd8, 0x9c, 0xfa, 78197470Sed}; 79197470Sed 80187469Sedstatic teken_char_t 81197470Sedteken_scs_special_graphics(teken_t *t, teken_char_t c) 82187469Sed{ 83187469Sed 84187469Sed /* Box drawing. */ 85187469Sed if (c >= '`' && c <= '~') 86197470Sed return (t->t_stateflags & TS_8BIT ? 87197470Sed teken_boxdrawing_8bit[c - '`'] : 88197470Sed teken_boxdrawing_unicode[c - '`']); 89187469Sed return (c); 90187469Sed} 91187469Sed 92187469Sedstatic teken_char_t 93197470Sedteken_scs_uk_national(teken_t *t, teken_char_t c) 94187469Sed{ 95187469Sed 96187469Sed /* Pound sign. */ 97187469Sed if (c == '#') 98197470Sed return (t->t_stateflags & TS_8BIT ? 0x9c : 0xa3); 99187469Sed return (c); 100187469Sed} 101187469Sed 102187469Sedstatic teken_char_t 103197471Sedteken_scs_us_ascii(teken_t *t __unused, teken_char_t c) 104187469Sed{ 105187469Sed 106187469Sed /* No processing. */ 107187469Sed return (c); 108187469Sed} 109